CN104028218A - Low-cost high-activity catalytic type desulphurization active coke and preparation method thereof - Google Patents
Low-cost high-activity catalytic type desulphurization active coke and preparation method thereof Download PDFInfo
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Abstract
The invention provides a low-cost high-activity catalytic type desulphurization active coke. The low-cost high-activity catalytic type desulphurization active coke is a material which is activated, extruded and formed by mainly components comprising carbonization soft coal and pyrolusite; the percentage of weight of manganese is not less than 1.6%; the saturated sulphur capacity of the desulphurization active coke is 140-181mg/g; the specific surface area is 319-363m<2>/g; the iodine value is 344-393mg/g. The preparation method of the low-cost high-activity catalytic type desulphurization active coke comprises the following steps: firstly carbonizing smoke, crushing the pyrolusite and the soft coal carbonization material into powder, adding the soft pyrolusite powder into the soft coal carbonization material powder and uniformly mixing, then adding water to mix till the material is free of powder aggregate, adding coal tar, fully kneading and then extruding, forming and drying, causing the dried material to be subjected to activation reaction under the conditions with N2 protection and water vapor, finally cooling the material along with a furnace to room temperature under the N2 protection to obtain the low-cost high-activity catalytic type desulphurization active coke. By virtue of the low-cost high-activity catalytic type desulphurization active coke, the problems of low desulfuration capacity, regeneration frequency, large use amount and high operation cost of the currently-used desulfuration active coke can be solved.
Description
Technical field
The invention belongs to activated coke production technical field, be specifically related to a kind of low-cost highly active catalytic type desulphurizing activated coke and preparation method thereof.
Background technology
Activated coke dry flue gas desulphurization is to control SO
2discharge is one of means the most effectively, and its basic principle is mainly to utilize the characterization of adsorption of activated coke, makes the SO in flue gas
2generate sulfuric acid with water and oxygen reaction and be adsorbed on the surface of activated coke, adsorb after saturated and recycle sulphur resource by regeneration.The key of activated coke dry flue gas desulphurization is the performance of activated coke, determine activated coke performance quality because have raw material, moulding process, charing, activating process and additive etc.
CN101485972A discloses a kind of preparation method of coal-based activated coke for desulfuration, the method is broken into first kind coal (brown coal) and Equations of The Second Kind coal (bituminous coal or anthracite) respectively coal cinder and grinds to form coal dust, add after binding agent and water and mediate and make coal cream, the extrusion modling of coal cream is made after cylindric charcoal post, be dried and charing processing, screening is processed and is removed underproof carbonized material, qualified carbonized material carries out activation processing and forms activated material, screening is processed and is removed underproof activated material, makes qualified coal-based activated coke for desulfuration.The method has the following disadvantages: (1) the method be take brown coal as primary raw material, the ash content of brown coal own and moisture are higher, its ash content is generally more than 10%, moisture is between 20～30%, thereby high content of ashes can suppress the desulfurization performance that pore-creating effect affects product, and high-moisture can cause the low and cost of transportation of desulphurizing activated coke yield to increase; (2) in order to maintain the suitable volatile matter of raw material, ash content and water content, the method adopts coal blending, after brown coal powder, bituminous coal powder or anchracite duff being added to water and binding agent in preparation process, mediate coal-forming cream, kneading is difficult to guarantee the mixing uniformity of 2 kinds of coal dusts, and this can cause the desulphurizing activated coke properties of product of preparation unstable; (3) the activated coke Sulfur capacity finally preparing is lower.
At present also to exist desulfurization capacity lower for commercial size application of active coke, and regeneration is frequent, and use amount is large, causes desulfurizer volume large, invest high, and carry and regeneration energy consumption high, the problems such as operating cost height.Therefore, be necessary the highly active modified active coke material of developing low-cost, to improve desulfurization performance, reduce use amount, reduce investment and operating cost.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of low-cost highly active catalytic type desulphurizing activated coke and preparation method thereof, low to solve the desulfurization capacity that the desulphurizing activated coke of current use exists, regeneration is frequent, the problems such as use amount is large, operating cost height.
Low-cost highly active catalytic type desulphurizing activated coke provided by the invention, through activation processing, key component, it is the moulding mixture of charing bituminous coal and pyrolusite extrusion molding, wherein the weight content of manganese is not less than 1.6%, the saturated sulfur capacity of this desulphurizing activated coke is 140～181mg/g, and specific area is 319～363m
2/ g, iodine number is 344～393mg/g.In desulphurizing activated coke, to pay the utmost attention to be 1.6～7.9% to the weight content of manganese.
The preparation method of above-mentioned low-cost highly active catalytic type desulphurizing activated coke is as follows, mainly comprises the following steps:
(1) charing: bituminous coal is placed in to retort, at N
2under protection, be warming up to 500～700 ℃, carbonization reaction 0.5～2h, then at N
2under protection, cool to room temperature with the furnace, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively pyrolusite and bituminous coal char material are ground into powder, pyrolusite powder is joined in the carbonized material powder of 100 weight portions and mix, the addition of pyrolusite powder is that the weight content of manganese in the catalytic type desulphurizing activated coke that makes to produce is not less than 1.6%;
(3) kneaded and formed: to the water that adds 9～12 weight portions in mixed material, while being mixed in material without powder aggregate, to add the coal tar of 40～45 weight portions, 30～60 ℃ of abundant kneadings, by the material extrusion molding after abundant kneading, dry;
(4) activation: the moulding mixture after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour and be warming up to 750～950 ℃, priming reaction 0.5～2h, then at N
2under protection, cool to room temperature with the furnace, prepare catalytic type desulphurizing activated coke.
Said method be take bituminous coal as basic material, and because bituminous coal has compared with high volatility with compared with low ash content, this is conducive to the deposition of metal in pore-creating effect in desulphurizing activated coke preparation process and pyrolusite.
In order to obtain better technique effect, the present invention has also further taked following technical measures.
In said method step (2), the addition of pyrolusite powder is preferably the weight content of manganese in the catalytic type desulphurizing activated coke that makes to produce in 1.6～7.9% scopes.
In step in said method (4), the flow that the water vapour passing into is paid the utmost attention to 0.4～1.8mL/min passes into activation furnace.
In said method step (2), pay the utmost attention to carbonized material and pyrolusite powder are broken into the powder that particle diameter is no more than 150 μ m.
In said method step (1) and step (4), the speed of intensification is preferably 5～15 ℃/min.
In said method, for the bituminous coal of charing, be the pellet bituminous coal that particle diameter is no more than 3mm.
In said method step (3), during kneading, preferably material kneading is extruded into type again to being mud paste.
In said method, for easy to process and saving processing cost, preferably kneading gained material is extruded into strip material, then is cut into billot section.The diameter of material strip is generally not more than 5mm, and the length of material section is generally 0.5～5cm.
Compared with prior art, the present invention has following beneficial effect:
1. the invention provides a kind of Novel desulphurization activated coke, this desulphurizing activated coke is by adding active component pyrolusite, to be prepared from the basis of bituminous coal, becoming traditional simple adsorption desulfurize of desulphurizing activated coke is adsorption desulfurize and catalytic desulfurization, improved significantly the desulfurization performance of desulphurizing activated coke of the present invention, its saturated sulfur capacity can be up to 140～181mg/g, use it for desulfurization, can reduce the use amount of desulphurizing activated coke and reduce its regeneration frequency, thereby saving desulphurization cost.
2. the present invention also provides a kind of preparation method of described catalytic type desulphurizing activated coke, and the method technique is simple, and the productive rate of desulphurizing activated coke is also higher, and production cost is low, is conducive to apply.
3. the volatile matter content of the present invention's bituminous coal used is higher, content of ashes is low, and this is conducive to the deposition of metal in pore-creating effect in desulphurizing activated coke preparation process and pyrolusite.The moisture of described bituminous coal is low, the cost of transportation that this is conducive to improve the productive rate of desulphurizing activated coke and reduces raw material.Meanwhile, it is active component that the method for the invention is selected pyrolusite, and without using manganese after fine finishining as additive, and pyrolusite aboundresources, cheap, thereby the production cost of the inventive method is very cheap.
The specific embodiment
Below by embodiment, the present invention is specifically described; be necessary to be pointed out that at this; embodiment is only for the present invention is further illustrated; can not be interpreted as limiting the scope of the invention; person skilled in art can content according to the present invention makes some nonessential improvement and adjustment is specifically implemented, but so concrete enforcement should still belong to protection scope of the present invention.
In following each embodiment, the volatile matter content of the bituminous coal using (Vad) is that 35.2wt%, content of ashes (Aad) are that 6.42wt%, moisture (Mad) are 6.70wt%, and the manganese content of the pyrolusite using is 39.4wt%.
Comparative example 1
In this comparative example, the preparation method of desulphurizing activated coke is as follows:
(1) charing: bituminous coal is broken into the pellet that particle diameter is 2mm left and right, bituminous coal pellet is placed in to retort, at N
2under protection, the temperature of retort is risen to approximately 600 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, carbonization reaction 1.5h left and right, then at N
2under protection, with retort, naturally cool to room temperature, obtain bituminous coal char material;
(2) abrasive dust: bituminous coal char material is pulverized, crossed 200 mesh sieves with pulverizer, obtain the carbonized material powder that particle diameter is no more than 75 μ m;
(3) kneaded and formed: to get step (2) gained carbonized material powder 100 weight portions, add 10 weight parts waters, mechanical mixture is in material during without powder aggregate, add 40 weight portion coal tar, then approximately 60 ℃ of kneading 30min left and right, material is mud paste, kneading gained material is extruded into the strip material that diameter is 3mm with vacuum hydraulic extruder under 8MPa pressure, cut into 0.5cm strip material section, strip material section is dried to about 12h in 105 ℃ of left and right;
(4) activation: the strip material after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour the temperature of activation furnace is warming up to approximately 950 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, priming reaction 0.5h left and right, steam rates is about 1.0mL/min, then at N
2under protection, cool to room temperature with the furnace and obtain desulphurizing activated coke.
The embodiment of the present invention 1
In the present embodiment, the preparation method of catalytic type desulphurizing activated coke is as follows:
(1) charing: bituminous coal is broken into the pellet that particle diameter is about 2mm, by bituminous coal pellet in retort, at N
2under protection, the temperature of retort is risen to approximately 600 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, carbonization reaction 1.5h left and right, then at N
2under protection, with retort, naturally cool to room temperature, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively 200 mesh sieves are pulverized, crossed to pyrolusite and bituminous coal char material with pulverizer, obtain pyrolusite powder and carbonized material powder that particle diameter is no more than 75 μ m, get 100 weight portion carbonized material powders, add 4 weight portion pyrolusite powders, then by the two mechanical agitation to mixing, obtain mixed material;
(3) kneaded and formed: step (2) gained mixed material is inserted and in kneading machine, added 10 weight parts waters, be mixed to while occurring without powder aggregate in material, add 40 weight portion coal tar, then approximately 60 ℃ of kneading 30min left and right, material is mud paste, then with vacuum hydraulic extruder, kneading gained material is extruded into the strip material that diameter is 3mm under 8MPa pressure, cuts into 0.5cm strip material section, strip material section is dried to about 12h in 105 ℃ of left and right;
(4) activation: the strip material after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour the temperature of activation furnace is warming up to approximately 950 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, priming reaction 0.5h left and right, steam rates is about 1.0mL/min, then at N
2under protection, cool to room temperature with the furnace and obtain catalytic type desulphurizing activated coke.
In catalytic type activated coke prepared by the present embodiment, the weight content of manganese is 1.6%.
Embodiment 2
In the present embodiment, the preparation method of catalytic type desulphurizing activated coke is as follows:
(1) charing: bituminous coal is broken into the pellet that particle diameter is 2mm left and right, bituminous coal pellet is placed in to retort, at N
2under protection, the temperature of retort is risen to approximately 500 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, carbonization reaction 2.0h left and right, then at N
2under protection, with retort, naturally cool to room temperature, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively 200 mesh sieves are pulverized, crossed to pyrolusite and bituminous coal char material with pulverizer, obtain pyrolusite powder and carbonized material powder that particle diameter is no more than 75 μ m, get 100 weight portion carbonized material powders, add 8 weight portion pyrolusite powders, then by the two mechanical agitation to mixing, obtain mixed material;
(3) kneaded and formed: step (2) gained mixed material is inserted and in kneading machine, added 9 weight parts waters, be mixed to while occurring without powder aggregate in material, add 42 weight portion coal tar, then approximately 60 ℃ of kneading 30min left and right, material is mud paste, with vacuum hydraulic extruder, kneading gained material is extruded into the strip material that diameter is 3mm under 10MPa pressure, cuts into 1.5cm strip material section, strip material section is dried to about 12h in 105 ℃ of left and right;
(4) activation: the strip material after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour the temperature of activation furnace is warming up to approximately 900 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, priming reaction 1.5h left and right, steam rates is about 0.6mL/min, then at N
2under protection, cool to room temperature with the furnace and obtain catalytic type desulphurizing activated coke.
In catalytic type activated coke prepared by the present embodiment, the weight content of manganese is 3.2%.
Embodiment 3
In the present embodiment, the preparation method of catalytic type desulphurizing activated coke is as follows:
(1) charing: bituminous coal is broken into the pellet that particle diameter is 2mm left and right, bituminous coal pellet is placed in to retort, at N
2under protection, the temperature of retort is risen to approximately 550 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, carbonization reaction 1.5h left and right, then at N
2under protection, with retort, naturally cool to room temperature, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively 200 mesh sieves are pulverized, crossed to pyrolusite and bituminous coal char material with pulverizer, obtain pyrolusite powder and carbonized material powder that particle diameter is no more than 75 μ m, get 100 weight portion carbonized material powders, add 12 weight portion pyrolusite powders, then by the two mechanical agitation to mixing, obtain mixed material;
(3) kneaded and formed: step (2) gained mixed material is inserted and in kneading machine, added 12 weight parts waters, be mixed to while occurring without powder aggregate in material, add 43 weight portion coal tar, then approximately 60 ℃ of kneading 30min left and right, material is mud paste, with vacuum hydraulic extruder, kneading gained material is extruded into the strip material that diameter is 3mm under 10MPa pressure, cuts into 2.0cm strip material section, strip material section is dried to about 12h in 105 ℃ of left and right;
(4) activation: the strip material after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour the temperature of activation furnace is warming up to approximately 750 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, priming reaction 0.5h left and right, steam rates is about 1.8mL/min, then at N
2under protection, cool to room temperature with the furnace and obtain catalytic type desulphurizing activated coke.
In catalytic type activated coke prepared by the present embodiment, the weight content of manganese is 4.7%.
Embodiment 4
In the present embodiment, the preparation method of catalytic type desulphurizing activated coke is as follows:
(1) charing: bituminous coal is broken into the pellet that particle diameter is 2mm left and right, bituminous coal pellet is placed in to retort, at N
2under protection, the temperature of retort is risen to approximately 650 ℃ according to the heating rate of approximately 5 ℃/min by room temperature, carbonization reaction 0.5h left and right, then at N
2under protection, with retort, naturally cool to room temperature, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively 200 mesh sieves are pulverized, crossed to pyrolusite and bituminous coal char material with pulverizer, obtain pyrolusite powder and carbonized material powder that particle diameter is no more than 75 μ m, get 100 weight portion carbonized material powders, add 16 weight portion pyrolusite powders, then the two machinery is stirred to mixing, obtain mixed material;
(3) kneaded and formed: step (2) gained mixed material is inserted and in kneading machine, added 10 weight parts waters, be mixed to while occurring without powder aggregate in material, add 45 weight portion coal tar, then approximately 60 ℃ of kneading 30min left and right, material is mud paste, with vacuum hydraulic extruder, kneading gained material is extruded into the strip material that diameter is 3mm under 12MPa pressure, cuts into 3.0cm strip material section, strip material section is dried to about 12h in 105 ℃ of left and right;
(4) activation: the strip material after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour the temperature of activation furnace is warming up to approximately 900 ℃ according to the heating rate of approximately 15 ℃/min by room temperature, priming reaction 2.0h left and right, steam rates is about 0.4mL/min, then at N
2under protection, cool to room temperature with the furnace and obtain catalytic type desulphurizing activated coke.
In catalytic type activated coke prepared by the present embodiment, the weight content of manganese is 6.3%.
Embodiment 5
In the present embodiment, the preparation method of catalytic type desulphurizing activated coke is as follows:
(1) charing: bituminous coal is broken into the pellet that particle diameter is 2mm left and right, bituminous coal pellet is placed in to retort, at N
2under protection, the temperature of retort is risen to approximately 700 ℃ according to the heating rate of approximately 15 ℃/min by room temperature, carbonization reaction 0.5h left and right, then at N
2under protection, with retort, naturally cool to room temperature, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively 100 mesh sieves are pulverized, crossed to pyrolusite and bituminous coal char material with pulverizer, obtain pyrolusite powder and carbonized material powder that particle diameter is no more than 150 μ m, get 100 weight portion carbonized material powders, add 20 weight portion pyrolusite powders, then by the two mechanical agitation to mixing, obtain mixed material;
(3) kneaded and formed: step (2) gained mixed material is inserted and in kneading machine, added 10 weight parts waters, be mixed to while occurring without powder aggregate in material, add 45 weight portion coal tar, then approximately 30 ℃ of kneading 60min left and right, material is mud paste, with vacuum hydraulic extruder, kneading gained material is pressed into the strip material that diameter is 3mm under 12MPa pressure, cuts into 2.5cm strip material section, strip material section is dried to about 12h in 105 ℃ of left and right;
(4) activation: the strip material after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour the temperature of activation furnace is warming up to approximately 950 ℃ according to the heating rate of 5 ℃/min by room temperature, priming reaction 1h left and right, steam rates is about 0.8mL/min, then at N
2under protection, cool to room temperature with the furnace and obtain catalytic type desulphurizing activated coke.
In the catalytic type activated coke of this example preparation, the weight content of manganese is 7.9%.
Embodiment 6: desulphurizing activated coke performance measurement
The mensuration of the saturated Sulfur capacity of desulphurizing activated coke is carried out according to MT/T998-2006, the mensuration of drum strength is carried out according to GB/T7702.3-2008, the mensuration of iodine number is carried out with reference to GB/T7702.7-2008, and specific area utilizes SSA-4200 type specific area and pore analysis instrument to measure.Weight * 100% of strip material (oven dry) before the weight/activation of productive rate=desulphurizing activated coke finished product of desulphurizing activated coke.The results are shown in Table 1.
The performance of table 1 desulphurizing activated coke
| Embodiment | Saturated sulfur capacity, mg/g | Drum strength, % | Specific area, m 2/g | Iodine number, mg/g | Productive rate, % |
| Comparative example 1 | 71 | 98.1 | 352 | 342 | 59 |
| Embodiment 1 | 140 | 98.3 | 343 | 393 | 62 |
| Embodiment 2 | 165 | 97.8 | 363 | 389 | 61 |
| Embodiment 3 | 181 | 98.6 | 333 | 368 | 65 |
| Embodiment 4 | 174 | 97.7 | 319 | 357 | 61 |
| Embodiment 5 | 152 | 98.2 | 329 | 344 | 64 |
Desulphurizing activated coke performance data by comparative example in table 11 and embodiment 1 is known, the saturated sulfur capacity of the desulphurizing activated coke of embodiment 1 preparation is almost 2 times of comparative example 1 gained desulphurizing activated coke, and this illustrates the saturated sulfur capacity that can increase substantially desulphurizing activated coke that adds of pyrolusite.
Desulphurizing activated coke specific area is larger, illustrates that the pore structure of desulphurizing activated coke reaches all the more, thereby is more conducive to its adsorption desulfurize.The performance data of desulphurizing activated coke in Comprehensive Correlation example 1 and embodiment 1～5, compare with comparative example 1, the specific area of the desulphurizing activated coke of embodiment 1～5 preparation does not significantly increase, and what even have also reduces to some extent, but the saturated sulfur capacity of desulphurizing activated coke is all improved largely.Adding of this explanation pyrolusite makes desulphurizing activated coke of the present invention possess the performance of catalytic desulfurization, and this catalytic desulfurization performance should stem from the catalysed oxidn of the transition metal that pyrolusite contains.
The saturated sulfur capacity of catalytic type activated coke of the present invention is high, have good intensity, use it for desulfurization, can reduce the use amount of desulphurizing activated coke, thereby reduce volume, the minimizing equipment investment of desulfurizer, simultaneously, can also reduce the regeneration frequency of desulphurizing activated coke, thereby reduce regeneration energy consumption, save desulphurization cost.
Claims (10)
1. a low-cost highly active catalytic type desulphurizing activated coke, it is characterized in that this desulphurizing activated coke for through activation processing, key component is that charing bituminous coal and pyrolusite are through the moulding mixture of extrusion molding, wherein the weight content of manganese is not less than 1.6%, the saturated sulfur capacity of this desulphurizing activated coke is 140～181mg/g, and specific area is 319～363m
2/ g, iodine number is 344～393mg/g.
2. low-cost highly active catalytic type desulphurizing activated coke according to claim 1, the weight content that it is characterized in that manganese in described desulphurizing activated coke is 1.6～7.9%.
3. the preparation method of the low-cost highly active catalytic type desulphurizing activated coke described in claim 1 or 2, is characterized in that comprising the following steps:
(1) charing: bituminous coal is placed in to retort, at N
2under protection, be warming up to 500～700 ℃, carbonization reaction 0.5～2h, then at N
2under protection, cool to room temperature with the furnace, obtain bituminous coal char material;
(2) abrasive dust batch mixing: respectively pyrolusite and bituminous coal char material are ground into powder, pyrolusite powder is joined in the carbonized material powder of 100 weight portions and mix, the addition of pyrolusite powder is that the weight content of manganese in the catalytic type desulphurizing activated coke that makes to produce is not less than 1.6%;
(3) kneaded and formed: to the water that adds 9～12 weight portions in mixed material, while being mixed in material without powder aggregate, to add the coal tar of 40～45 weight portions, 30～60 ℃ of abundant kneadings, by the material extrusion molding after abundant kneading, dry;
(4) activation: the moulding mixture after drying is placed in to activation furnace, at N
2protection, pass under the condition of water vapour and be warming up to 750～950 ℃, priming reaction 0.5～2h, then at N
2under protection, cool to room temperature with the furnace and obtain catalytic type desulphurizing activated coke.
4. the preparation method of low-cost highly active catalytic type desulphurizing activated coke according to claim 3, the addition that it is characterized in that step (2) pyrolusite powder is that the weight content of manganese in the catalytic type desulphurizing activated coke that makes to produce is 1.6～7.9%.
5. according to the preparation method of low-cost highly active catalytic type desulphurizing activated coke described in claim 3 or 4, it is characterized in that in step (4), the flow with 0.4～1.8mL/min passes into water vapour.
6. according to the preparation method of low-cost highly active catalytic type desulphurizing activated coke described in claim 3 or 4, it is characterized in that, in step (2), carbonized material and pyrolusite powder are broken into the powder that particle diameter is no more than 150 μ m.
7. according to the preparation method of low-cost highly active catalytic type desulphurizing activated coke described in claim 3 or 4, it is characterized in that the heating rate in step (1) is 5～15 ℃/min.
8. according to the preparation method of low-cost highly active catalytic type desulphurizing activated coke described in claim 3 or 4, it is characterized in that the heating rate in step (4) is 5～15 ℃/min.
9. according to the preparation method of low-cost highly active catalytic type desulphurizing activated coke described in claim 3 or 4, it is characterized in that the bituminous coal for charing is the pellet bituminous coal that particle diameter is no more than 3mm.
10. according to the preparation method of low-cost highly active catalytic type desulphurizing activated coke described in claim 3 or 4, it is characterized in that step (3) is strip material by the extrusion molding of kneading gained material.
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| CN110791305A (en) * | 2019-11-11 | 2020-02-14 | 山东大学 | Method and system for preparing active coke by co-pyrolysis of biomass and coal |
| CN111099591A (en) * | 2019-12-30 | 2020-05-05 | 四川大学 | Surface-modified high-activity low-temperature denitration active coke and preparation method thereof |
| CN114874818A (en) * | 2022-07-07 | 2022-08-09 | 淄博鹏达环保科技有限公司 | Blast furnace gas desulfurizer and preparation method and application thereof |
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| CN106582252A (en) * | 2016-12-21 | 2017-04-26 | 贵州大学 | Novel flue gas desulfurization and demercuration agent and preparation method thereof |
| CN106582251A (en) * | 2016-12-21 | 2017-04-26 | 贵州大学 | Method for preparing flue gas desulfurization and mercury removal agent through raw material of lithium manganese titanate |
| CN106731463A (en) * | 2016-12-21 | 2017-05-31 | 贵州大学 | A kind of Li2MnTiO4For the method for flue gas desulfurizing and hydrargyrum-removing treatment |
| CN106731463B (en) * | 2016-12-21 | 2019-03-26 | 贵州大学 | A kind of Li2MnTiO4Method for flue gas desulfurizing and hydrargyrum-removing processing |
| CN106582251B (en) * | 2016-12-21 | 2019-05-14 | 贵州大学 | A kind of manganese titanate lithium raw material prepares flue gas desulfurizing and hydrargyrum-removing agent method |
| CN106731644A (en) * | 2016-12-22 | 2017-05-31 | 贵州大学 | A kind of method that modified pyrolusite processes coal-fired flue-gas |
| CN109806839A (en) * | 2019-03-29 | 2019-05-28 | 平罗县国宁活性炭有限公司 | A kind of activated coke preparation method |
| CN110791305A (en) * | 2019-11-11 | 2020-02-14 | 山东大学 | Method and system for preparing active coke by co-pyrolysis of biomass and coal |
| CN111099591A (en) * | 2019-12-30 | 2020-05-05 | 四川大学 | Surface-modified high-activity low-temperature denitration active coke and preparation method thereof |
| CN114874818A (en) * | 2022-07-07 | 2022-08-09 | 淄博鹏达环保科技有限公司 | Blast furnace gas desulfurizer and preparation method and application thereof |
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